The Treaty of Babel A community standard for IF bibliography Change history * Revision 7 (13 April 2006) Initial public release. * Revision 8 (19 February 2014) Added the element to , providing an (optional) textual description of the cover art. * Revision 9 (24 October 2014) Noted that the tag may be extended for new IF systems. Added "html" as a format value, indicating a game intended to be run in a standard web browser. Mentioned the Babel-IF mailing list. * License (3 November 2018) Placed the treaty document (and the rest of the web site text) under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The copyright is transferred to the Interactive Fiction Technology Foundation. * License for source code (7 August 2019) Updated the babel.zip source package to a Creative Commons Attribution 4.0 International License. (Previously it was version 2.5.) * Format update (7 October 2020) Updated the plain text treaty document to Markdown, and with HTML generated from that. * Revision 10 (23 January 2021) Twine and Alan are now signatories. Added "tuid" bibliographic tag (IFDB identifier). Deprecated "bafn" bibliographic tag (Baf's Guide identifier). Many minor updates and wording changes. * Revision 11 (18 January 2022) Added info on IFIDs for HTML files in general.